605005550557 has 2 divisors, whose sum is σ = 605005550558. Its totient is φ = 605005550556.

The previous prime is 605005550483. The next prime is 605005550563. The reversal of 605005550557 is 755055500506.

605005550557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 390401282041 + 214604268516 = 624821^2 + 463254^2 .

It is a cyclic number.

It is not a de Polignac number, because 605005550557 - 2³⁹ = 55249736669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (605005550587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302502775278 + 302502775279.

It is an arithmetic number, because the mean of its divisors is an integer number (302502775279).

Almost surely, 2^605005550557 is an apocalyptic number.

It is an amenable number.

605005550557 is a deficient number, since it is larger than the sum of its proper divisors (1).

605005550557 is an equidigital number, since it uses as much as digits as its factorization.

605005550557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 656250, while the sum is 43.

The spelling of 605005550557 in words is "six hundred five billion, five million, five hundred fifty thousand, five hundred fifty-seven".